ICP Central air conditioner is frequently cycling/short cycling
When an Icp central air conditioner is frequently cycling, the system may turn on and off repeatedly before your home reaches the thermostat setting. This central air short cycling is most often caused by a clogged air filter, which restricts airflow through the furnace or air handler and can make the evaporator coil frost over. Replace a dirty air filter and check it more often in dusty homes or homes with pets. Next, inspect the outdoor condenser coils. Dirt and debris prevent heat from leaving the system, forcing the compressor to overheat and shut down, which can cause the air conditioner to short cycle. A failing wall thermostat or thermostat wiring is less common but can have defective electrical contacts that send intermittent cooling signals. Finally, a faulty control board in the furnace or air handler may interrupt power to the cooling components. Cleaning coils and replacing filters or thermostats can be DIY repairs, but disconnect power first. Testing or replacing control boards involves electrical hazards, including 240-volt line voltage, so use a qualified technician when needed. Enter your model number to find the exact ICP replacement part for your central air conditioner.
01 - ICP Central Air Conditioner Air Filter
Check and replace the air filter at least twice a year, more often in dusty/dirty environments or if there is a pet in the home. A clogged air filter will greatly reduce the air flow of the furnace or air handler which can result in the unit short cycling when trying to cool the home.
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The condenser coils dissipate the heat as the refrigerant passes through the coils. If the condenser coils are dirty, they won’t be able to dissipate the heat as effectively. As debris builds up on the coils, the heat pump will become less efficient, causing the unit to work harder to cool down. If the coils are significantly dirty, the heat pump will not be able to remove the heat from the outdoor coil, resulting in the compressor overheating and short cycling. Check the condenser coils to determine if they are dirty. Refer to owner's manual for cleaning instructions.
Common
03 - ICP Central Air Conditioner Wall Thermostat
The wall thermostat has electrical contacts that control the power supply to the furnace, air handler and condensing unit. If the contacts in the thermostat fail, the cooling system may turn on intermittently. To determine if the thermostat is defective, use a multimeter to test it for continuity. If the wall thermostat does not show proper continuity, replace it.
The WiFi thermostat has electrical contacts that control the power supply to the furnace, air handler and condensing unit. If the contacts in the thermostat fail, the cooling system may run intermittently. To determine if the thermostat is defective, use a multimeter to test it for continuity. If the WiFi thermostat does not show proper continuity, replace it.
If the air filter is clogged, air cannot flow properly through the home's venting system. This greatly reduces the cooling capacity of the air conditioner. In addition, if the air filter is clogged, the evaporator coils will frost over and not be able to remove moisture from the air. The air filter should be checked and replaced at least twice a year, more often in dusty/dirty environments. Refer to owner's manual for guidance.
Less Common
06 - ICP Central Air Conditioner Control Board
The control board regulates the power supply to all of the components of the furnace or air handler. If the control board fails, it might not send voltage to parts of the cooling system, causing a loss of cooling and frequent cycling.